Printing-press attachment.



A. L. SMITH.

PRINTING PRESS ATTACHMENT.

APPLICATION Fl LED MAY 4, 1914.

Patented May 18, 1915.

2 SHEETSSHEET x.

'Ntumegs nu. NORRIS PETERS C0, PHOTO-LITHQ, WASHINGTON. D. C.

A. L. SMITH.

PRINTING PRESS ATTACHMENT.

APPLICATION FILED MAY 4, 1914.

LEQQJ. 9?, Patented May 18, 1915.

2 SHEETS-SHEET 2.

glnfimiur wi nesses I z T THE NORRIS PETERS 60.. PHOTO-LlTl-Iav WASHINGTON D. C,

ALTA IA. SMITH, OF RICHMOND, VIRGINIA.

PBINTING-lR-ESS ATTACHMENT.

Specification of Letters Patent.

Patented May 18, 1315.

Application filed May 4, 1314. Serial No. 836,241.

To all whom it may concern Be it known that I, ALTA L. SMITH, a citizen of the United States, residing at Richmond. in the county of Henrico and State of Virginia, have invented certain new and useful Improvements in Printing-Press Attachments; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to printing presses and has for an object to provide improved means to attach to the platen of a printing press for moving the paper into exact position for correct registry of impression.

A further object of the invention is to provide improved means for attaching the device to the platen of the press.

A further object of the invention is to provide improved means for actuating the moving means.

A. further object of the invention is to provide an improved member for engaging and moving the paper.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully de scribed and claimed.

In the drawings: Figure 1 is a View of the improved device attached to the platen of a press seen in top plan as when the platen is open to receive the paper. Fig. 2 is a view in elevation of the device in the position that the platen would assume when receiving the impression. Fig. 3 is a view of the attachment in rear elevation. Fig. 4k is a view of the attachment in edge elevation. Fig. 5 is a perspective view of a detail of the attachment. Fig. 6 is a perspective view of the cam. Fig. 7 is a perspective view of the finger for engaging the paper.

Like characters of reference designate corresponding parts throughout the several views.

The improved attachment which forms the subject matter of this application is adapted to be attached to the platen 10 of a press of substantially the usual and ordinary type such attachment being by any approved means as by drilling holes 11 in the end of the platen and inserting pins 12 into such holes. A body member is carried by said pins 12 rigid with the platen and may be made permanent therewith or removable. H the latter, a pin 14: is provided by which the device be removably secured to the platen.

A plate 15 is carried rigidly by the body portion 13. Mounted upon the plate 15 is a lever 16 fulcrumed at 17 to swing through a limited arc in contact with the top of the plate 15. The inking arm of the press 18 is provided with a cam 19 against which the lever 16 engages in any approved manner as by having a shoe 20 to engage against such cam. The cam is secured in anv approved manner, here shown as employlng a clip 21 embracing the arm 18 and a bifurcated pin 22 in which such cam rests. It will be apparent, especially from Fig. 1 that as the platen 10 rocks upon its usual hinge the shoe 20 will move along the surface of the cam 19 from the point indicated at Fig. 1 to the point indicated at Fig. 2 during which movement the lever 16 is moved between the positions shown in the said two figures.

The lever 16 has a slot 23 at one end and a pin 24L adjacent the opposite end which provide means for retaining a strip 25 in position upon the lever by inserting the end of the strip 25 through the slot 23, bringing the opposite end of such strip down over the pin 24 and securing it in such position by swinging the latch 26 to locking position as shown at Figs. 1 and 2. It is obvious that by turning the latch 26 upon its pivot 27 the strip 25 may be released and lifted bodily off from the lever 16.

The strip 25 carries a slide 28 which is secured in any adjustment longitudinally of the strip 25 by the screw and nut 29. The slide 28 also carries a screw and nut 30 which serve to secure an arm 31 to the slide 28 so that the said arm slides longitudinally of the strip 25 with such slide 28. The arm 31 extends over the platen 10 and into position to engage the paper 32 so that when the arm 31 moves from the position shown in Fig. 1 to the position shown in Fig. 2 it will move the paper 32 upon the gage pins 33 to the correct position required for the impression.

The arm 31 is provided with an ear 34 beveled to slide under the paper 32 as indicated at Fig. 2 and a spring finger 35 which stands up above the paper and carries a lug her and having 36 positioned to slip over the top ofthe paper. The finger 85 is constructed of spring material so that if it should be engaged by one of the grippers 37 or strike 7 the chase or furniture no damage would result as the finger would yield to-such pressure and be compressed upon the platen or paper; It will be noted that the shape and position of the cam 19 are such that the arm 31 is not actuated at the first movement of the platen toward the form but the platen travels a considerable distance be fore the shoe 20 reaches an inclinedportion of thecam, the beginning of such inclined portion being indicated at 38. By the arrangement of parts in such manner as stated the platen assumes a vertical or nearly vertical position before the paper 32 is'moved by the arm 81 whereby thepaper rests upon the'impression pins 33 or in case the paper has not been placed properly upon such impression pins the movement of the arm against the edge of the paper with the paper standing in vertical or nearly vertical position serves to move the paper properly upon both of the impression pins 33 to thereby insure the proper margin of the paper upon all sides' On the return movement of the platen a spring 41 carried by the body 13 swings the lever outward and causes the shoe to remain in contact with face of the cam 19. It will also be noted that the body is attached to the platen'between the pivots 3 9 and that the arm 31'is also positioned between such pivots which does not in any way interfere with operating the tympan securing means. When it is necessary to change'the tympan sheet in any way or to varythe impression by manipulating such sheets the arm 31 may be removed from the device simply by throwing the latch 26 around upon its pivot and lifting the strip 250i? from the lever 16 carryingthe arm therewith leaving the entire platen free from obstruction. When the device is returned as by returning the strip 25, to position it will be obvious that the arm 3l will again assume exactly the position at which it'was set before removal The arm 31 is also made adjustable relative to the strip 25 as will beapparent from Figs. ,1, 2 and 5 by providing a slot 4:0 which embraces the screw 3Q and permits of the arm being moved longitudinally. Arms of different lengths will, of ceurse, be provided as occasion may require.

1 aim:

1. In an attachment for printing press platens, a member rigidly secured to. the end of theplaten ;'a lever pivoted upon the mema shoe; a cam'carried by the inking armadjacent the platen and in position to be engaged by said shoe on the lever; a strip extending longitudinally of the lever and carried removably by the 2. An attachment for .printingfpress' platens comprising a lever pivotally' connected with and swinging in the plane of the platen; a cam spaced from the platen and in position to be engaged'by the lever I as the platen swings upon its hinge; a strip extending longitudinallyof "the lever'and removably connected at one end theretoya latch detachably connecting itsjother end to i said lever, a slide adjustable on the strip, and an arm carried by the slide and extending transversely'of the strip and over the platen.

3. attachment for printing press platens comprising a lever pivotally connected with and moving in the plane of the platen; a cam located adjacent'the platen;

a shoe on the lever and in position to be engaged by the cam as the platen swings upon its hinge; a strip removably carried by the lever; a slide movable upon the strip,

and an arm adjustably carried by the slide and extending over the platen. V

4. attachment for printing press platens comprising a lever fulcrumed to' swing adjacent the platen, means to swing f the lever as the platen swlngs upon its hinge, an arm carried by the lever, means permitting the adjustment of the armlongitudinally of said lever, and a'spring finger standing upwardly from the arm.

' 5. An attachment for nected with the platens comprising a member rigid with the platen at one side,'a plate'removably car ried by. said member, a lever pivotally connected at oneend to said plate and moving in a plane with the platen, a spring throwing the other end the lever norlnally outward, means to move the leverv inward as the pl ten s gs oi s nge. a a mw ried by the lever and extending transversely thereof over the platen, and means to permit the adjustment of the arm both long itudinally and transversely of the lever. 7

An attachment for printing press platens comprising a rigid member mounted at one side of the platen, a lever pivotally connected to the rigid member and moving in the planeof the, platen, a removable strip extending longitudinally of the lever, means to secure the strip to the lever, a slide mounted pon e s p, an arm adjus able 0 P n i g Pres platens comprising a lever pivotally conplaten; a strip extending I longitudinally of the lever at. the side of tl e'platen;'means to removably connect the tudinally of its length on and carried by the slide and extending transversely over the lever and the strip and over the platen, and means to move the lever as the platen swings upon its hinge.

8. An attachment for printing press platens comprising a lever pivotally mounted at one side of the platen, means to move the lever as the platen swings upon its hinge, and an arm carried by the lever and extending over the platen, said arm having a curved finger extending therefrom at an ALTA L. SMITH.

Witnesses L. L. MORRILL, GEO. M. BOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

